Swivel pipe-coupling.



No. 794.499. PATENTED JULY 11. 1905. A J. HAGEMAN.

SWIVEL PIPE COUPLING.

APPLICATION FILED FEB. 9. 1903.

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. nal, and steam pipes under railway-cars with UNITED STATES Patented July 11, 1906.

PATE T OFFICE.

METALLIC HOSE COMPANY,

A CORPORATION 0F MAIN E.

SWIVEL Pl PE-COUPUNG.

SPECIFICATION forming part of Letters Patent No. 794,499 dated July 11, 1906. Application filed February 9,19%. Saris! lio- 142,6!3.

To a]! whom it 11mg; concern.-

Bcit known that I, Axrnosrlfimemu, a citizen of the United States, residing at Chicage, county of Cook, State of Illinois, have invented a certain new and useful Improvement in Swivel Pipe-Couplings; end I declare the following to be a full, clear, and exact description of the invention, such as will on'aiiie others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a. part of this specification.

My invention relates in general to pipe. couplings, and more particularly to swivci-.

couplings for uniting sections of train-pipes.

It is usual to provide the ends of brake, sighose the flexibiiityof which prevents the relative movements bet can the ends of adjoining cars in the train from disconnecting the trainpipes or destroying their air-tight. condition- The use of hose is, however, objectionable, as it deteriorates in a comparatively short time, which results in leaks, and consequently necessitates frequent renewail. It has been heretofore proposed to substitute for the hose at tin uds of the crain-pipa under raiiwaycars mcialliiz pipe-sections united by swiveljoints aml thereby rendered flexible, 1V hile such flexihie metallic pipes are durable and avoid the objection to hose, their use has not been satisfactory. owing to the impossibility of preventing leakage at the swivel-joints be" tween the sections of the pipe.

The primary object of my invention is to provide a swivei-joint for metallic pipe-sections which while permitting the necessary relative movement between the adjacent sections will be air-tight, and thereby obviate the objection now cxistingto the use of flexible metaliic pipes for connecting the trainpipes under adjacentcars ofo train.

A further object of my invention is to proride on air-tight swivobjoint for uniting the ends of pipe-sections which will be simple in construction, inexpensive in manufacmro, and el'iicient in operation. 1

My invention. generally described, consists in, an annular sect formed in the and of one of the pipe-sections andsurrounded l ven exteriorly-screw-thraaded flange, a'sieeve secured within the and of the other pipe-session and having an annuiar seat corresponding to the seat formed in the end of the first pipesection and having a flange extending within and surrounded by the dungeon the first pipesection, a difl'erenoial sleeve 5. portion of Whichsurrounds and is secured to the screwthreaded flangeon the first pipe-section, while a portion of iess diameter movably surrounds the exterior surface of the end of the second piposection, and suitabie packing located in said annular seats and between the vertical faces on the sleeves secured to the respective pipe-sections.

My invention will be more fully described hereinafter with reference to the accompanying drawings, in which the same is iiiustrated as embodied in two convenient and practical forms, and in which-- Figure 1 is a central section through pipesections united hymy improved swivel-Joint; Fig. 2, a sectional view on line 22, F I; Fig. 3, a view, similar to Fig. 1, of I. In ificaticn; and Ffi 4 a sectional view on line 4 4, Fig. 8.

Simi or reference characters are used todosi mite simiiar parts in the several figures of tho rawings,

In Figs. 1 and 2 1 have iiiustrhted an embod iment of my im provemcntapplied between the opposite ends of an elbow-joint and the adjacent ends ofpipe-sections. It will be of course understood that my improv ment is adapted to be used in uniting any two adjoining pipe-sections regardless of whether the pipe-soctions are straight or curved. As the swivel-joint; at each and the curved pipesoction A are the some. it will only be necessary to describe one of them in detail;

A indicites one pipeoection, which is providcd with sir-annular aeaira and with an ex: toriorLv-screw-threcdeii circular flange A. Shouiders a are formed at either side of the annular seat a.

B indicates the second pipe-section, the and of which is interiorly screw-threaded to reccive the cxteriorly-screw-threadecl ortion of a sleeve C. The sleeve 0 is provic ed with a radially-projecting flange G. in which is formed an annular seat 0, located between shoulders 1:. The annular sent 0 corresponds to the annular seat a. in the first pi pe-section A, while the shoulders a and c are ulined with each other.

A differential sleeve D surrounds and engages the screw-th rcnded flange A of the first pipe-section A, while a portion Dof the sleeve 1) movably surrounds the end of the second pipe-section D. A vertical surface I) is formed between the portions of the sleeve D of different diameters and closely engages the vertical surfaces on the flanges A and 0'.

Located within the annular seats a and c is egasket cup-shaped in cross-section and preferably made of rubber or leather. A ring I, also preferably made of rubber or leather, surrounds the gasket Land engages the inner surfaces of the outer shoulders a and c.

The vertical surface D is provided with an annular recess in which is seated a washer M, formed of any suitable materialns, for instance, fiber.

The wear upon the gasket L and ring 1, due to the relative movement between th united sections of pipe, may be taken up by turning the sleeve D about the screw-threaded flange A, thereby bringing the alincd shoulders a and c closer together. The sleeve D may be turned by any desired means-such, for instance, ass. wrench adapted to engage grooves (2, formed in the exterior surface of the reduced portion 1) thereof. The sleeve D may be locked against rotary movement with respect to the flange A by means of a cottcrpin extending through a perforution in 2. lug d and through a slot formed in a. lug n projecting from the flange A. A second slotted lug a, may he provided at one hundred and eighty degrees from the first, so that the sleeve D may be given 11. half-turn about the flange .A'and then locked in such adjusted position:

The parts of the coupling are assembled as follows: The outer sleeve D is first located around the end of the p'ipe-section B, after which the inner sleeve 0 is screwed within the end of the pipe-section B. The end of the pipe-section A is then brought to a position adjacent to the end of the inner sleeve 0. with the flange A surrounding the flange O and with the gasket L and ring Z interposed between the seats 6 and a. The outer sleeve D is then rotated and the screw-threads on the interior of the enlarged portion thereof engaged with the screw-threads on the exterior of the flange A. The rotation of the outer sleeve D is continued until the parts aredrawn together, so as to form an air-tight joint, after which the cotter-pin e is inserted through the hole in the lugd and also through the slot in one-of the iugs a.

It is evident that when the ipe-sectionsA and B are relatively rotated t e inner sleeve moves with the section B, while the outer gasket into close contact with the sears a and 6. thereby preventing the air pussingbctween the flanges A'snd C. Should any air, however, pass the gasket L, it would engage the inner surface of the ring I and force the same tightly over the outer shoulders n and 0, thereby forming an additional means for preventing the air from passing between the flanges A and C. The washer M also serves to form an air-tight packing between the adjacont faces on the flange C and the portion D of the outer sleeve.

In Figs. 3 and 4 I have illustrated a modified embodiment of my invention especially adapted for use in connectingsections of pipe constituting a conduit forsteam or other .iuid the action of which would deteriorate the matcrial forming the gasket and ring employed iBn the embodiment of my invention shown in In lieu of thegasketLand ring I aminernl gasket L is used, which does not deteriorate by con tact of steam therewith. An asbestos gasket m is also inserted between the surfaces of the flange C on the inner sleeve and the fiber washer seated in the vertical surface of the intermediate portion D'of the outer sleeve.

in order that slight wear upon the gasket and washer may be taken up, a. series of slotted lugs a. are provided on the flange A of the pipe-section A, therehy' permitting the outer sleeve I) being locked with respect to the pipesection A at any one of a number of positions by means of the'cotterspin a passing through the hole in the lug d and engaging theslot in one' of the lugs a". i

The manner of assembling the parts in the modification shown in Fig. 3 isin all respects the same as that above described with reference to the embodimeutof my invention illustrated in Fig. 1. When the united sections of pipe are relatively rotated, the mineral gasket L, the asbestos gasket m. and the fiber washer M effectively prevent the escape of steam or other fluid flowing through the united pipe-sections. l

From the fore oing description it will be observed thntl nu'e invented an improved swivel pipe-couplingwhereby two united sections of pipe may be relatively rotated and at the same time the fluid which flows through the united pipe-sections is prevented from escaping. V

While I have described more or less precisely the details of construction, I do not wish to he understood as limiting myself thereto, as I contemplatechangos in form, the proportion of parts, and the suhstitutionof equivalents as circumstances may suggest or render expedient without departing fromthe spirit of my invention.

Havin new fully described my invention, wha't I c aim as new, and desire to secure by Letters Patent. is-

1. The combination with a section of pipe having an integral outwardly-prejecting radial flange at its end and a circular flange located at the outer periphery of said radial flange, of a second section of plum-an inner sleeve secured within the end of said second section of pipe and having a radial flange located adjacent to the radial flange on the first pipe-section and surrounded by said circular flange on the first pipe-section, agasl-rot interposed between the radial flange on the first pipe-section and the radial llangc on said inner sleeve, an outer sleeve relatively surrounding the end of the second pipe-section and having a radial Ilungc engaging the outer surface of the radial fiangron the inner sleeve, and a circular llange formed integrally with said outer sleeve extending from the outer periphery of the radial flange thereof, said circular flange surrounding and beingin screw-threaded engagement with the circular flange on the first pipe-section.

2. The combination with a section of pipe having an integral outwardly-projectingradial llangc at its end and a circular flange located at the outer periphery of said radial flange, of a second sect-10h of pipe, an inner. sleeve secured within the end of said second section of pipe and having a radial flange located adjacentto the radial flange on the first pipe-section and surrounded by said circular 'flange on the first pine-section, an outer sleeve rotatively surrounding the end of the second pipe-section and havinga radial flange rotatively engaging the radial flange on the inner slcei'e, a. washer interposed between the adjacent surfaces of the radial flanges on the inner and outer sleeves, and a circular flange formed integrally with said outer sleeve extending around and in screw-thremled engagemeet with the circular flange on the first pipesection.

3., A swivel-joint for uniting the ends of two pipes eompi'isinga sleeve lined to the end of one pipe and havin" an annular seat. therein adapted to aline with a similar-annular scat formed in the end of the other pipe, a gasket U-shalpod in cross-section located in said alien-d annularseats. a ring surrounding said gasket and also located within said alinrd seats. and means for drawing said annular seats togethea 4. The combination with a section of pipe having an outwardLv'lnrojocting radial flange at its and and a circu er flange located at the outer periphery of said radial flange, of a second section of pipe having a radial flange at its and located adjacent to the radial flange on the first pine section and surrounded by said circular flange on the first nine-section. cgaslcct interposed between the radial flanges on the first and seeoml pipe-sections, a sleeve rotatively surrounding the end of the second pi e-section and having a radial flange located adjacent the outer surface of the radial flange thereon, and a circular flange extending from the outer periphery of the radial liange of said sleeve, said circular flange surroundin and secured to the circular flange on the hrst.pipe-seetinn.

5. 'ihccombination with a section of pipe having an outwardly-prejecting radial flange at its end and a circular flangelocatcd at the outer periphery of said radial flange, of ascennd section of pipe having a radial flange losated adjacent to the radial flange on the first pipe-sect on and surrounded by said circular flange on the first pine-section, a sleeve rotatively surrounding the end of the second pipeseclion and having a radial flange local-ed adjacent/the radial flange on the second pipe-- section, a washer interposed between the adjacentsurfaces of the radial flanges on said secuntl pipe-section and said sleeve,'and a circular flange formed integrally with said sleeve extending around and secured to the circular flange on the first pipe-section.

G. The combination with a section of pipe having an annular seat formed in its end and also having a liangc extending around said seat, oi'asccond section of pipe, an innersleeve secured within the end of said second section of pipe having a radial flange located within the liange on the first section of pipe and also having an annular seat wrresponding to and in alinemcnt with the scat formed in the end of the first section of pipe, an outer sleeve su rrounding and engaging the llane'o on the first section of his and movahly surrounding the end of said second section of pipe, a gasket located within said alined annular seats, a ringnurroundingsaid gasket and also located within said alined annular seats, and a washer interposed between the radial flange on said inner sleeve and the adjacent surface of the outer sleeve. v

'i': The combination with a section of pipe having an annular seat formed in its end and also having a flange extending: around said seat, of asccondscctlon of pipe, an innersleevo secured within the end of said second section of pipe having a. radial flange located within the. flange on the first section of pipe and also having an annular seat corresponding to and in alinement with the seat formed in the end of the firstsectioa of pipe, an outer sleeve surrounding and engaging the flange on the first section of pipe'and movably surrounding the end of said second section of pipe. a gasket located within said alined annular seats, means for moving said outer sleeve relatively to said flange on the first pipe-section and thereby takingup the wear on said gasket a lug, projecting from said outer sleeve, and a lug projecting from said first pipe-section in a plane adjacent to said first lug, and means 'for lock ing said lugs together.

8. The combination with a section of pipe having an annular seat formed in its end and also having a flange extending around said seat. of aseconrl section of pipe, an inner sleeve secured within the end of said second section of pipe having a radial flange located within the flange on the first section of pipe and also having an annular seat corresponding to and in alin'ement with the seat formed in the end of the first section of pi pe, an outer sleeve surrounding and engaging the flange on the first section of pipe and movably surrounding the end of said second section of pipe, a gasket located within said alined annular seats, means for movingsaid outer sleeve relatively to said flange on the first pipe-section and thereby taking up the wear on said gasket, a lug havion a hole therethrough pro ecting from said outer sleeve, a plurality of slotted lugs projecting from said'first pipe-section and adapted to successively register with said first log, and a cotter-pin adapted to pass through the hole in said first log and through the slot in one of said plurality of lugs.

In testimony whereof I sign this specification in the presence of two witnesses.

.ANTHONY J. HAGEMAN. Witnesses:

Geo. L. Wmnmsou, G. C. CUNNINGHAM. 

